1mole of mgcl2 is dissolved in 1 l of water. which of the following is true?
a. mgcl2 exists at a concentration of 1m
b. mg2+ exists at a concentration of 1m
c. cl- exists at a concentration of 1m
d. none of the above
e. all of the above

Okay well gravitational energy is matter forced by gravity making energy though the kinetic energy then the electric energy produces electricity from the kinetic energy and the kinetic energy gets its energy from the gravitational energy. was that the answer you wanted or something else?  

Sorry i dont understand the question can you rephase it?

Those are different gas lawshere is a brief description of themcharles's law states that volume and temperature are directly proportional to each other as long as pressure is held constant.  boyle's law asserts that pressure and volume are inversely proportional to each other at fixed temperature.gay-lussac's law introduces a direct proportionality between temperature and pressure as long as it is at a constant volume.    source:

It will be b hydrogen